" Tim \(Remove NOSPAM." wrote in message ...
"Owain" wrote in message
...
"Steve Firth" wrote
| N. Thornton wrote:
| How about putting a UPS on the CH? Easier, cheaper.
| and limited to about 20 minutes run time.

You only need a UPS if the supply has to be *uninterruptible*. If the CH
is
plugged into a (double pole switched, or unswitched) 13A socket it's easy
enough to unplug it and plug into an inverter+car battery.

I'm not an expert here, but surely if you are running on a generator, which
is loaded suitably, say to 50-60% of its rated output by primarily resistive
loads, say fan heater, then any spikes caused by the freezer compressor
switching in and out would be absorbed upto a point? All electronic
components produced have to be filtered and happy on a wide variety of
voltage and frequency to get a CE certification now anyhow...?

Tim..

Hi Tim.

It certainly will improve things, but not solve them. A generator is
an inductive device, and if a load is switched off it will produce an
inductive kick. This is out of all proportion to the spikes on the
mains, and can damage some items. Resistive loading will help with
this but wont eliminate it. Hefty surge suppression can deal with the
worst of it, one of the few apps where I could actually recommend
them.

Regards, NT